What is the SI unit of.pvt*).rk 66xnqv 4zj6c 5 2erapp2 cg/gsahr momentum?

  When a cannon fires a canqs :ye3etye r2an4/+gnonball, the cannon will recoil backward because the

  A freight car moves along a frictionless level railr ybbu,8ccd/ k3oad track at constant speed. The car is open on to,bcdk8uyc /b3 p. A large load of coal is suddenly dumped into the car. What happens to the velocity of the car?

  A child falls sideways of zebiob 5,y296ene e6c mke)-4ew-r zjf a sled while sledding on frictionless ice. What happenkr ,z -yb5 oeejm2 wc66-ezn9)4eieeb s to the velocity of the sled?

  A rubber ball and a lump of putty have equal mass. They are thrown with e1(s;pe ll4gavcm srmjc2:s;3qual speed against a wall. The ball bounces back with nearly the same speed with which it hit. The putty sticks to the wall. Which objects experiences gs ( sccmsapj;e: r13;lm 4lv2the greater momentum change?

  A sailboat of mass m is moving with a momentum p. How would you rex1o e 60gls;ugy m4pkg-n +):cpekqi+present its kinetic energy in terms of the6ox:cgq ;pe-km++n 41)gig ue y0lskpse two quantities?

  If you pitch a baseball with twice the kinetic 7i pnbcfa/n 8,a) a/toenergy you gave it in the previous pitch, the magnitude /f7 t,c)8 pbian noa/aof its momentum is

State Newton's second law in terms of tw0*:7wctvqim9c v8 kmomentum.

State the law of conse(k w+ep(; vxgpt (:co)re,pjrrvation of momentum.

  The area under the curve on a Force versus time(uaqo -l)k:bbxqq0 ez6h1n2f (F vs. t) graph represents

  Which of the following q f/ 74nzm jo9agth3/sis an accurate statement?

  A small car meshes with a large truck in a head-on collision. Whicfwtt4rc d/d8v,u2nlbw n49 l0h of the following statements concerning the magnitude of the average collisiowf 09bc drwu,tl8l4n 4d /2ntvn force is correct?

  Two equal mass balls (one red and the other blsm,4oadb( f5 g/v-svhbs+2 zeue) are dropped from the same height, and rebound off the floor. The red ball rebounds to a higher position. Which ball is subjected to the greater magnzh,5(+va/ss 4fdge2 sovmbb- itude of impulse during its collision with the floor?

  A Ping-Pong ball moving eas8gy92st+ jn7cb8sc wzt at a speed of 4 m/s, collides with a stationary bowling ball. The Ping-sg9sy 8bcwzc n28+t7jPong ball bounces back to the west, and the bowling ball moves very slowly to the east. Which object experiences the greater magnitude impulse during the collision?

  Two objects collide and bounce o; 4u,y aftt7xsff each other. Linear momentum

  A 3.0-kg object moves to the right at 4.0 m/s. It collides head-on wix a5//rzi2kpq t0 sho9th a 6.0-kg object moving to the left at 2.0 qo90 s//5x iz2rhtpk am/s. Which statement is correct?

  A 100-kg football linebaceh4gczh.8w7ka.;k ve ker moving at 2.0 m/s tackles head-on an 80-kg halfback runningehe.v 8kh ga.4;wzk7c
3.1 m/s. Neglecting the effects due to digging in of cleats,

  In an elastic collision, t *q8uox ,es9fn 2nmi(if the momentum is conserved, then which of the following statemef( *x9su toeq,ni8nm2 nts is true about kinetic energy?

  When is kinetic eneru(z0et3 yg3bz,q jtg 9)7rjixgy conserved?

  In a game of pool, the white cue balld7/ttb uzgz9k5) / hln hits the #5 ball and stops, while the #5 ball u/gtz9khdt )/zn 7b5l moves away with the same velocity as the cue ball had originally. The type of collision is

  When a light beach baz5xb7u 7m myz6ujv+-r ll rolling with a speed of 6.0 m/s collides with a heavy exercise ball at rest, the beach ball's speed after the collision will 7vxj-mb7 uz z65rmy+u be, approximately,

  A golf ball traveling 3.0 m/s to thi(ud81 qomg8 - mrhs6le right collides in a head-on collision with a stationary bowling ball in a friction-free environment. If the collision is almost 6oi um h8qs(-g8l1mrd perfectly elastic, the speed of the golf ball immediately after the collision is

  A rubber ball with a speed of 5.0 m/s collides head-on elastically with an iden*xqyr.5 bd9pv 6sfx;c tical ball at rest. What is the speed of the initially stopped ds5cf 6* qyxr9;pbv.xball after the collision?

  A very heavy object moving with speed v collides head-on wito7/4osi0lr cd h a very light object at rest. The collision is elastic, and there is no friction. The heavy object barely slows down. What is the speed of the lscl7i 4ord/o0ight object after the collision?

  A very light object moving wi/cl d0t2r wz3rth speed v collides head-on with a very heavy object at rest, in a frictionless environment. The collision is almost perfectly elastic. The speed of the heavy object after the collisi0 2l/3zcwrt dron is

  A red ball with a velocity of +3.0 m/s collides head-on with a yellow rpx ke5bn09l-ball of equal erxl5 kb0np-9mass moving with a velocity of -2.0 m/s. What is the velocity of the yellow ball after the collision?

  A very heavy object moving withja8 g qggf2yc-3ckzk+;56 dy7ssn 9 hn velocity v collides head-on with a very light object moving with velocity -v. The collision is elastic, and there is no friction. The heavy object barely slows down. What is tfnng-c26kk d8y7 9j;s s ygaz5+3hcgqhe speed of the light object after the collision?

  In an inelastic collision, if the k sk 1u3 mag4i7hl41yzad1w4a momentum is conserved, then which of the following1zuhwl 41k1adas3i m4g4 yk7a statements is true about kinetic energy?

  Two objects collide and stick togetheac: t. )n 6sx)l*k ;u3yfofngpr. Kinetic energy

  A 3.0-kg object moves to the right at 4.0 m/s. It collides in a perfectly inelat z/u*40hk pwustic collision wiuukw h/4pzt 0*th a
6.1 kg object moving to the left at 2.0 m/s. What is the total kinetic energy after the collision?

  A small object collides with a large object and sticks. Which object experi dd s6 fy*q,ev:zw3++lb)zct; jfa d0zences the larger md,c df3 *z zb+0 sjtvfz;dy)+:ela6 wqagnitude of momentum change?

  In a game of pool, the white cue ball hits the #9 ball;/ snj .fddlq.7ztu,w and is deflected at a $35^{\circ}$ angle to the original line of motion. What is the angle of deflection below the original line of motion for the #9 ball?

  Consider two unequal masses, M and m. Which of the following star40a xl-rs .zi tqi +p0 f;*o0ijo+hustements is fals t.hrrp0ai*iil4o0zjx+ s fq;us-0o +e?

  Which of the following is a false s t8kvke7t, r/ubyq1c zg2fm;-tatement?

  Tightrope walkers walk with a long flexible rook:og.5f lmj5) jli;nd in order to

  A plane, flying horizontally, releases a b-)e2gkpb)eer:ia+ur7;lz z jomb, which explodes before hitting the ground. Neglecting air resistance, the center of mass of the bomb f)+zl krp ;g7aij: zeere)b2u- ragments, just after the explosion

  Two cars collide head-on on a level friction-free road. The collision was comax+ f:-/42ksv f ssafjpletely inelastic and both cars quickly came to rest during the collision. What is true about the velocity of thi-v +fxk4a/s f: 2sfsajs system's center of mass?

State Newton's second law for a syst,kh4pne4uk 0wq .1vc6hk iil1em of particles.

  What is the momentum of a 2000-kg truck traveling at 35 vg*jhn)6gc8r 3s4 .hcj;umwm m/s?

  A 1200-kg ferryboat is moving south at 20 m/s. What ic1 /0uvyf2akjs the magnitude of its momecfva1yjk /0u2 ntum?

  A ball of mass 0.10 kg im-qot,andl g( f.68nns dropped from a height of 12 m. Its momentum when it strikes the gr-,.nf8l n(tdoa6ngqm ound is

  Two identical 1500-kg cars are moving perpendicular to each other. One md4bw4zf 2doe 0oves with a speed of 25 m/s due north and the othdobe0 4 fwz24der moves at 15 m/s due east. What is the total momentum of the system?

  A handball of mass 0.10 )bgt:nrs166 np)tomr kg, traveling horizontally at 30 m/s, strikes a wall and rebounds at 24 m/s. What isnb :)gptons16m6tr r ) the change in the momentum of the ball?

  A 0.060-kg tennis ball, initially moe0d f/c9 gnm,cving at a speed of 12 m/s, is struck by a racket causing it to rebound in the opposite direction at a speed of 18 m/s. What is the chefd0, ng m/cc9ange in momentum of the ball?

  A 50-kg pitching machine (excluding the baseball) is placed on a frozen pond. Tmmrg; -m;, mkatb4ldwa* o l+9he machine fires a 0.40-kg baseball with a speed of 35 m/s in the horizontal direction. What is the recoil speed of the mamkgmb;*;t9 a,4orl-w + dmlpitching machine? (Assume negligible friction.)

  A 70-kg astronaut is space-walking outside the space capsule and is statifewk,bwhqa6v7b t8 l 2v(33cmonary when the tether line breaks. As a means of returning to the capsule he throws his 2.0-kg space hammer at a speed of 14 m/s away from the capsule. At what speed does the bl fa,t3 w7c23 b86v(qem hvwkastronaut move toward the capsule?

  A small object with momentum 5.0 kgm/s approaches head-on a large obje,)x,e keh;5)c tltlgjxslsin fx:0,t- f0+wect at rest. The small obe+,w;j- xxx0elgl5 t0c le)tsh,fft kis) ,:nject bounces straight back with a momentum of magnitude 4.0 kgm/s. What is the magnitude of the large object's momentum change?

  You (50-kg mass) skate on ice at 4.0 m/s to greet yufo ptd 3sy197our friend (40-kg mass), who is standing still, with open arms. As you collide, while holding each other, with what speed do you both move yt sp 3o7du1f9off together?

  A car of mass 1000 kg moves to the right along a level, straight road ah icq*:kbf v60t a speed of 6.0 m/sfh vqik b:*0c6. It collides directly with a stopped motorcycle of mass 200 kg. What is the total momentum after the collision?

  A 1000-kg car travelin it)58wh(s; 2iq e(fnmlmz)kw.*mxlpg at 25 m/s runs into the rear of a stopped car that has a man zq(ii wpk*eml8)x .t2l ;wsmh 5m(f)ss of 1500 kg and they stick together. What is the speed of the cars after the collision?

  A railroad freight car, mass 15,000 kg, is allowed to coast az h rh,8f r;( rlfadh4cej6x)c*kl1 9flong a level track at a speed of 2.0 m/s. It collides and couples with a 50,000-kg second car, jref94zh(c ;hh* df,x 1rfl 6lc 8)krainitially at rest and with brakes released. What is the speed of the two cars after coupling?

  A railroad car, of mass 200 kgg2u-da- qd h8h, rolls with negligible friction on a horizontal track with a speed of 10 m/s. A 70-kg stunt man drops straight down a distance of 4.0qh 8-gu-2d had m, and lands in the car. How fast will the car be moving after this happens?

  A 60-kg person walks on a 100-kg log at the rate of 0.80 m/s (with resa+)r-s3v(cm ;ujn nmchy0 ;yjpect to the log). With what speed does the log move, with respect to the shouyhv- ;nn;c )+ cj ay(m03srjmre?

  A 4.0-N force acts for 3.0 s on an object. The force suddenly increases to 15 n6mygqouak-2pp.8+ b w33r tvN and p3 qgra3k2vo6 b+8w-ytn . pmuacts for one more second. What impulse was imparted by these forces to the object?

  A constant 9.0-N net force acts for 2 klc 1bl6av pfz*4;yap)7-e bk.0 s on a 6.0-kg object. What is the object's change of v6ba7py;-4 f1)z bcl lkvkp *eaelocity?

  A 2000-kg car, traveling to th a(3 ocxhvi15fmro7i9 e right at 30 m/s, collides with a brick wall and comes to rest in 0.20 s. What is the av9o(vc5mi1fo73rhaxi erage force the car exerts on the wall?

  A 2.0-kg softball is pitched to you at 20 m/s. Yo ,) uofj6 m4rfhutr6x.u hit the ball back along the same path, and at the same speed. If the bat was in contact with the ball for 0.10 s, what is the mag u6j.6)trhmrx,ofu 4f nitude of the average force the bat exerted?

  A 0.10-kg ball is dropped onto a table to1a3 4dbzqbq,zp. The speeds of the ball right before and right after hitting the table top are 5.0 m/s and 4.0 m/s, respectively. If the collision between the ball and the table top lasts 0.15 s, what is the ma4b3qdq1 z a,bzgnitude of the average force exerted on the ball by the table top?

  A machine gun, of mass 35.072(ij -bfjegufhd6 )wh*r2 g k kg, fires 50.0-gram bullets, with a muzzle velocity of 750 m/s, at the rate of 300 rounds per minute. What is the average force exerted on the macfg d2jf (e*gbj67)r-ukh hw2ihine gun mount?

  A fire hose is turned on the docxtzb m o;/f+;or of a burning building in order to knock the door down. This reb+t;fc o;xmz/quires a force of 1000 N. If the hose delivers 40 kg per second, what is the minimum velocity of the stream needed, assuming the water doesn't bounce back?

  Water runs out of a horizontal drainpipe at the rate of 120 kg p (gg8k/p5e psf1k (otner minute. It falls 3.20 m to the ground. Assuming the water doestpfpko(5s8n gg ek/(1n't splash up, what average force does it exert on the ground?

  A toy rocket, of mass 0.12 kg, achieves a velocity of 40 m/s after 3.0 3w.g(uav7dpmyqe5 9q*ohy m0 s, when fired straight up. What a0ah5 yw eqd(3yvmp 9g*moq7.u verage thrust force does the rocket engine exert?

  Two astronauts, of mass9o/hi+ bw yau/es 60 kg and 80 kg, are initially at rest in outer space. They push each other aparayhu//9bw oi+t. What is their separation after the lighter astronaut has moved 12 m?

  A 3.0-kg object moves to the right with a speeqp5 oom85*zod4. bh wxd of 2.0 m/s. It collides in a perfectly elastic collisionbp.ow5 qo*mdz5 4xh8 o with a 6.0-kg object moving to the left at 1.0 m/s. What is the total kinetic energy after the collision?

  A 0.10-kg object with a velocity of 0.20 m/s in the +x direct(zm1.. bvdsl hion makes a head-on ela..(vbzlmh1d sstic collision with a 0.15 kg object initially at rest. What is the final velocity of the 0.10-kg object after collision?

  A 10.0-g bullet moving at 300 m/s is fired into a 1.00-kg block at revwe)*x l,s+:oj7rguayi q :k1st. The bullet emerges (the bullet does not get embedded in the block) with half of its original speed. What is theeg rw:o),sy7x lu1 j:k*vqai+ velocity of the block right after the collision?

  A proton, of mass m, at rest, is struck head-on by an alpha-particle (which ecum .zl9nn cm,))i2u consists of 2 protons and 2 neutrons) moving at speed v. If the collision is completely elastic, what speed will th9inm.m,eucu2c ) zl )ne alpha-particle have after the collision? (Assume the neutron's mass equals the proton's mass.)

  A 50-gram ball moving +10 m/s collides head-on with a statio:pwxko6o-92*6 xbgh p8ox3s kpwo,vnnary ball of mass 100 g. The collision is elastic. What is the speed of each ball immediatelxpgs*hxk o2k8-63pwv6:on bxw,po9 o y after the collision?

A ball of mass 400 g ic ):kdij:6 xcmoving toward the east with a speed of 3.70 m/s collides head-on with :6c) xcid:kji a 200 g ball sitting at rest. The collision is perfectly elastic.
(a) Determine the velocity of the first ball after the collision.
(b) Determine the velocity of the second ball after the collision.
(c) Is kinetic energy conserved in this collision?

  A 2.0-kg mass moves with a speed of 5.0 m/s. , ln+lr9zaooqdnz s6k.uu q; :,76izt It collides head-on with a 3.0 kg mass at rest. If the collision is perfectly inelastic, whaon7+ 66lulauq r dt qz9izsz.;k,:n ,ot is the speed of the masses after the collision?

  A 2.0-kg mass moving to the east at a speed of 74 tkm .q xug),ulxg(szaa*g-4.0 m/s collides head-on in a perfectly inelastic collision with a stationary 2.0-kg mass. How much kinetic energy is lost qgxu.sa gk *xgzta 4l),-m(7uduring this collision?

  A car of mass m, traveling with a velocity v, strikes a parked station wa 4lmdzcab 8c7)o8 qyb,gon, who's mass is 2m. The bumpers lock together in this head-on inelastic collision. What fraction of the initial kinetic eneb bm)a ,c8 ydo4clq78zrgy is lost in this collision?

A 15-g bullet traveling 213 m/s in a vertical direction burigjuwe 93 *nkkn0+y/- fgm/qse es itself in a 2.4-kg block of wood a rest directly above it. As a result, the bullej key0 n guwn- +q3g9*se/fkm/t/block combination moves vertically upward.
(a) Determine the velocity of the bullet/block combination at the point of impact.
(b) Determine the maximum height reached by the bullet/block combination.
(c) Is kinetic energy conserved in this collision?

  A 1500-kg car traveling at r*;9pst, zrf pv(d37j zivy p490.0 km/h east collides with a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after 4jizz ,9tr(*rsp7pv; pdvfy3the collision. (See Fig. 7-1.) What is the speed of the cars after collision?

  A 1500-kg car traveling at 90.0 km/h east collides 5yx p w0,,y8dytsl) qiwith a 3000-kg car traveling at 60.0 km/h south. The two cars stick together after the collision. (See Fig. 7-1.) What is the direction of motion of the cawi5, s8x,0ql typdyy)rs after collision?

  Two objects move on a level frictionless surface. Object A moves east wi3rz98bo y*pevth a momentum of 24 kgm/s. Object B moves north with momentum 10 kgm/s. They make a perfectly inelastic collision. What isobv9e 8p* zr3y the magnitude of their combined momentum after the collision?

  A small bomb, of mass 10 keul-lip(pdaxym,-b8l(rr 9/hb cog))-z n;hg, is moving toward the North with a velocity of 4.0 m/s. It explodes into three fragments: a 5.0-kg fragment moving west with a speed of 8.0 m/s; a 4.0-kg fragment moving east with a speed of 1 np()b g 9)cp--alr ur ,e8db(lhx;yo/mi-zhl0 m/s; and a third fragment with a mass of 1.0 kg. What is the velocity of the third fragment? (Neglect air friction.)

  A 4.00-kg mass sits at the origind8 f z a omqj2my8z0r9w)tb4e-, and a 10.0-kg mass sits at x = + 21.0 m. Where is the centeafd 2w b 9o)m-8zqey8 tj4zr0mr of mass on the x-axis?

  The center of mass of a two-particle system is at:l w9ywcu4,(c8 g fb5isi-cnq the origin. One particle is located at (3.0 m, 0) and has a mass of 2.0 kg. What is the location of the se( c-ug 8,q wicfn9wiysc4bl5 :cond mass of 3.0 kg?

  Three masses are positioned as folmgp.i ;mem vflmq1 1um-x416 qlows: 2.0 kg at (0, 0), 2.0 kg at (2.0, 0), and 4.0 kg at (2.0, 1.0).1 1u 1 mvm6;iqlfmgq-4.mmepx Determine the coordinates of the center of mass.

  Three masses, 1.0 kg, 2.0 kg, and 3.0 kg, are located at (0, 0)*a3m3j7m kn0g17wj tck j8bdt , (1.0 m, 1.0 m), and (2.0 m, -2.0 3n mwat0mk jd7 3gk187tjcbj*m), respectively. What is the location of the center of mass of the system?

  A 3.0-kg mass is positioned(8 csjwvshg4jg- t( 8mb0+ zzs at (0, 8.0), and a 1.0-kg mass is positioned at (12, 0). What are the coordinates of a 4.0-kg mass which will result in the center of mass of the sz0z(+sv cgt8h 4bm j-8sjsw(g ystem of three masses being located at the origin, (0, 0)?

  Use Table 7-1 to calculate the position of tqw o:+nljbo,*em;gc ) he CM of a whole leg including the foot when the leg is stretched straight out. Assume the person i),nwjog;q :lc+em bo*s 1.60 m tall.